how to insert data into mysql using text box by php ?

[mahmud prodhan]

i think my code is right . but it cannot work.
always says .........undefine varialble:_POST
;;;;;

 $roll=$_POST['roll'];
$name=$_POST['name'];
$class=$_POST['class']; 
$coll_name=$_POST['coll_name'];

i can't
please help me.

[kigoobe]

Ummm ...

1. You get the error message when you fill up the form and hit submit or when you hit submit without filling up the form?

2. $_POST['var'] .. does it work in other pages?

3. You are sure that you have set the action of your form as post, and not get?

4. What happens if you add error_reporting(0); at the top of your php page (just after <?php) ?

[bergy]

Do what Kigoobe suggests, if it's still not working, check your PHP version, if you're using a version less than 4.1.0 you'll have to use $HTTP_POST_VARS instead of $_POST. You can check your PHP version by typing the code below in a new PHP file:

[PHP]<?php phpinfo(); ?>[/PHP]

[Motoma]

i think my code is right . but it cannot work.
always says .........undefine varialble:_POST
;;;;;
$roll=$_POST['roll'];
$name=$_POST['name'];
$class=$_POST['class'];
$coll_name=$_POST['coll_name'];

i can't
please help me.

You haven't actually performed a POST operation to get to the PHP page. POST operations happen when you click a SUBMIT button in a FORM that has its METHOD tag set to POST and its ACTION tag set to the PHP page.

If you don't know what I am talking about, you will need to explain what you are trying to accomplish with your page.